There are 722 miles of subway track in New York City. Michael's father rides on the subway to get back and forth to work. He rides twenty miles to his office and twenty miles to get back home. This week Michael's father only worked on Monday and Tuesday. How many miles did he ride on the subway?

2.

Misima is very good at ikebana, making flower arrangements. One day, he decided to decorate his room, so he cut some fresh flowers in the garden. He had five roses, seven carnations, and eight tulips. After finishing his project, he had four flowers left. How many flowers did Misima use to make the ikebana?

Completa.

1.

1,990 + 743

2.

83 + 9,980

3.

628 + 861

4.

95 + 5,841

5.

841 + 5,430

6.

81 + 46

7.

5,197 + 76

8.

559 + 7,380

9.

734 + 38

Completa.

1.

428568+ 461

2.

17942+ 399

3.

48847+ 77

4.

40707+ 58

5.

64351+ 278

Inserisci le cifre mancanti.

1.

3

+

2

9

2

5

2.

6

7

+

2

1

0

3.

9

+

1

8

7

0

4.

8

+

6

4

4

0

Key #2

Completa.

1.

Ethan has a rock collection. He has one topaz, five rubies, twelve tiger-eyes, and forty-eight river rocks. How many rocks does he have all together?

2.

Mr. Johnson counted the white t-shirts in his store. There were12small white t-shirts. There were16medium white t-shirts. There were31large white t-shirts. There were17extra large white t-shirts. How many t-shirts were there in all?